Home / 14,100.13-19,458.81-7,812.50

Finding the Fourth Proportional to 14,100.13, 19,458.81 and 7,812.50

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Solution

The fourth proportional to 14,100.13, 19,458.81 and 7,812.50 is: 10,781.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,100.13 : 19,458.81 = 7,812.50 : x
  2. Step 2: Convert to fraction form
    14,100.13/19,458.81 = 7,812.50/x
  3. Step 3: Cross multiply
    14,100.13x = 19,458.81 × 7,812.50
  4. Step 4: Simplify right side
    14,100.13x = 152,021,953.13
  5. Step 5: Solve for x
    x = 152,021,953.13/14,100.13
  6. Step 6: Final answer
    x = 10,781.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.